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// Copyright Vespa.ai. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
#include "attribute_usage_filter.h"
#include "i_attribute_usage_listener.h"
#include <sstream>
namespace proton {
namespace {
void makeAddressSpaceMessage(std::ostream &os,
const AddressSpaceUsageStats &usage)
{
os << "{ used: " <<
usage.getUsage().used() << ", dead: " <<
usage.getUsage().dead() << ", limit: " <<
usage.getUsage().limit() << "}, " <<
"attributeName: \"" << usage.getAttributeName() << "\", " <<
"componentName: \"" << usage.get_component_name() << "\", " <<
"subdb: \"" << usage.getSubDbName() << "\"}";
}
void make_error_message(std::ostream &os,
double used, double limit,
const AddressSpaceUsageStats &usage)
{
os << "addressSpaceLimitReached: { "
"action: \""
"add more content nodes"
"\", "
"reason: \""
"max address space in attribute vector components used (" << used << ") > "
"limit (" << limit << ")"
"\", addressSpace: ";
makeAddressSpaceMessage(os, usage);
}
}
void
AttributeUsageFilter::recalcState(const Guard &guard)
{
(void) guard;
bool hasMessage = false;
std::ostringstream message;
const auto &max_usage = _attributeStats.max_address_space_usage();
double used = max_usage.getUsage().usage();
if (used > _config._address_space_limit) {
hasMessage = true;
make_error_message(message, used, _config._address_space_limit, max_usage);
}
if (hasMessage) {
_state = State(false, message.str());
_acceptWrite = false;
} else {
_state = State();
_acceptWrite = true;
}
}
AttributeUsageFilter::AttributeUsageFilter()
: _lock(),
_attributeStats(),
_config(),
_state(),
_acceptWrite(true),
_listener()
{
}
AttributeUsageFilter::~AttributeUsageFilter() = default;
void
AttributeUsageFilter::setAttributeStats(AttributeUsageStats attributeStats_in)
{
Guard guard(_lock);
_attributeStats = attributeStats_in;
recalcState(guard);
if (_listener) {
_listener->notify_attribute_usage(_attributeStats);
}
}
AttributeUsageStats
AttributeUsageFilter::getAttributeUsageStats() const
{
Guard guard(_lock);
return _attributeStats;
}
void
AttributeUsageFilter::setConfig(Config config_in)
{
Guard guard(_lock);
_config = config_in;
recalcState(guard);
}
void
AttributeUsageFilter::set_listener(std::unique_ptr<IAttributeUsageListener> listener)
{
Guard guard(_lock);
_listener = std::move(listener);
}
bool
AttributeUsageFilter::acceptWriteOperation() const
{
return _acceptWrite;
}
AttributeUsageFilter::State
AttributeUsageFilter::getAcceptState() const
{
Guard guard(_lock);
return _state;
}
} // namespace proton
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